A048212 as a triangular array
| | | | | | | | | | | 2 |
| | | | | | | | | | | 1 | | 3 |
| | | | | | | | | | 4 | | 5 | | 7 |
| | | | | | | | | 6 | | 10 | | 11 | | 13 |
| | | | | | | | 8 | | 14 | | 18 | | 19 | | 21 |
| | | | | | | 9 | | 17 | | 23 | | 27 | | 28 | | 30 |
| | | | | | 12 | | 21 | | 29 | | 35 | | 39 | | 40 | | 42 |
| | | | | 15 | | 27 | | 36 | | 44 | | 50 | | 54 | | 55 | | 57 |
| | | | 16 | | 31 | | 43 | | 52 | | 60 | | 66 | | 70 | | 71 | | 73 |
| | | 20 | | 36 | | 51 | | 63 | | 72 | | 80 | | 86 | | 90 | | 91 | | 93 |
| | 22 | | 42 | | 58 | | 73 | | 85 | | 94 | | 102 | | 108 |
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A048212 as a square array
2 | 1 | 4 | 6 | 8 | 9 | 12 | 15 | 16 | 20 | 22
| 3 | 5 | 10 | 14 | 17 | 21 | 27 | 31 | 36 | 42
| 7 | 11 | 18 | 23 | 29 | 36 | 43 | 51 | 58
| 13 | 19 | 27 | 35 | 44 | 52 | 63 | 73
| 21 | 28 | 39 | 50 | 60 | 72 | 85
| 30 | 40 | 54 | 66 | 80 | 94
| 42 | 55 | 70 | 86 | 102
| 57 | 71 | 90 | 108
| 73 | 91
| 93
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A048212 as an upper right triangle
2 | 1 | 4 | 6 | 8 | 9 | 12 | 15 | 16 | 20 | 22
| | 3 | 5 | 10 | 14 | 17 | 21 | 27 | 31 | 36 | 42
| | | 7 | 11 | 18 | 23 | 29 | 36 | 43 | 51 | 58
| | | | 13 | 19 | 27 | 35 | 44 | 52 | 63 | 73
| | | | | 21 | 28 | 39 | 50 | 60 | 72 | 85
| | | | | | 30 | 40 | 54 | 66 | 80 | 94
| | | | | | | 42 | 55 | 70 | 86 | 102
| | | | | | | | 57 | 71 | 90 | 108
| | | | | | | | | 73 | 91
| | | | | | | | | | 93
| | | | | | | | | |
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